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physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > equatorial telescope > English equatorial telescope > 28-inch Visual Refractor
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28-inch Visual Refractor
(Greenwich refractor)
subjectfact 
28-inch Visual Refractorhas comment Dome under repair in 19922001-09-27 09:28:00.0
has mounting manufacturer Ransomes and Sims2001-09-27 09:28:00.0
has longitude 00° 00'2001-09-27 09:28:00.0
has latitude 51° 29' N2001-09-27 09:28:00.0
has lens maker Gmbh2001-09-27 09:28:00.0
has aperture 0.711 m2001-09-27 09:28:00.0
has focal ratio f/11.92001-09-27 09:28:00.0
has synonym Greenwich refractor2001-09-27 09:28:00.0
has altitude 47 m2001-09-27 09:28:00.0
has owner Old Royal Observatory2001-09-27 09:28:00.0
has creation date 18942001-09-27 09:28:00.0
has location Greenwich, London, England2001-09-27 09:28:00.0
is an instance of refractor2001-09-27 09:28:00.0
is an instance of English equatorial telescope2001-09-27 09:28:00.0
English equatorial telescopehas mounting English equatorial2001-09-27 09:27:46.0
refractorhas lens type doublet2001-09-27 09:27:44.0
has optical design visual refractor2001-09-27 09:27:44.0
optical telescopehas reference astrowebhas URL: http://www.cv.nrao.edu/fits/www/yp_optical.html, 2001-09-27 09:27:43.0
Earth based telescopehas temperature ambient2001-09-27 09:27:45.0
telescopehas wavelength sensitivity2001-09-27 09:27:40.0
has angular resolving power2001-09-27 09:27:40.0
has effective diameter2001-09-27 09:27:40.0
has operator2001-09-27 09:27:40.0
has purpose observe celestial objects2001-09-27 09:27:40.0
artifacthas creator2001-09-27 09:27:27.0
physical objecthas angular momentum2001-09-27 09:27:27.0
has mass2001-09-27 09:27:27.0
has velocity2001-09-27 09:27:27.0
has momentum2001-09-27 09:27:27.0
has volume2001-09-27 09:27:27.0
has extent2001-09-27 09:27:27.0
has material2001-09-27 09:27:27.0

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